Loose-pulley ojler



(No Model.)

0. W. EOKERSON.

LOOSE PULLEY OILEB.

No. 341,738. Patented May 11, 1886.

06 6M IJVVEJVTOR V clear, and exact description thereof, reference .-NITE ATES l a'rnr rerun.

LOOSE PULLEY OiLER.

SPECIFICATION forming part of Letters Application filed October 14, 1885.

T0 aZZ whont it may concern:

Be it k nown that I, CHARLES W. EOKERSON, of Greston, in the county of Union and State of Iowa, having invented new and useful Improvements in Loose-Pulley Oilers; and I do hereby declare that the following is a full,

being bad to the accompanying drawin which form a part of this specification.

This invention relates to certain new and useful improvements in the construction and operation of means for lubricating loose pulleys, such as are used on counter-shafts or any other kind of shafting where the pulley is run without driving the shaft or machinery.

The object of the invention is, first, to save labor in attending to the proper oiling of this kind of pulleys, as my invention is a self-oiler only when the pulley is in motion; second, to save oil, as it will only perform its function when in motion, and with perfect regularity; third, cleanliness, as there will be no waste or drip of oil while in motion or at rest, because when at rest there is no feed. I attain these results by means of the mechanism illustrated in the accompanying drawings, which form a part of this specification,"and in which Figure 1. is an elevation of the side of a loose pulley and a sectional elevation of my im proved oiler attached. Fig. 2 is a transverse vertical section of the pulley with an elevation of my improved oiler thereto attached.

In these drawings, A represents an oil-cup having a needlefeed, B, made vertically adjustable in the usual way and as shown. This cup is screwed into the hub of the pulley, or otherwise suitably attached thereto, so that the lower end of the cup will communicate with the center hole of the pulley which forms the bearing thereof on the shaft. This hub is lettered O. A feed-pipe, D, is connected by a suitable union or coupling to the side of the cup, so as to have communication with the interior thereof, and is curved or carried around to be inserted in a suitable oil-feed holein the hub, as clearly shown in Fig. 1.

E is a hole for filling the oil-cup.

The operation of my improved oiler is as follows: When the oiler is constructed substantially as described and attached to the loose pulley substantially as specified, and the pulley is running in the direction indicated Patent No. 341,738, dated May 11, 1886.

Serial No. 179,904. (No model.)

by the arrow, the centrifugal force drives the oil to the top of the cup, whence its only outlet is into the feed-pipe, and thence to the hole in the hub of the pulley. The needlefeed B is for the purposes of admitting air into the oil-cup. and at the same time that it regulates theadmission of air it also regulates the flow of the oil through the pipe D. It is of course necessary to admit air into the cup A in order that the oil therein should feed through the pipe I); but the quantity of air required is not great, and a sufficient quantity is obtained through thejournal-bearing, which is always loose enough for this purpose. This cup will not feed when at rest, as it is made to work by centrifugal force and circular velocity only, and when at rest the oiler-cup with its attachments, owing to their weight, will assume a vertical position beneath the axle, in which position no oil will flow out of the cup A, even if the needle B is in such a position as to allow air to pass into the cup.

It will of course be understood that the weight of the cup and its attachments is not such as to interfere with the perfect running of the pulley, although heavy enough to insure its always assuming a vertical position beneath the axle when at rest.

I am aware of the Patents Nos. 116,442 and 201,487, and make no claim to the constructions shown therein as forming part of my invention.

What I claim as my invention is 1. The combination, with a pulley, of an oil cup connected to the hubthereot', and having air-passage communicating with the bearing of the axle, an adjustable needle working in said airpassage, and acurved feed-pipe connected with the top of the oil-cup, and having its discharge end communicating with an opening in the hub of the pulley, substantially as described.

2. The combination, with a loose pulley, of an oil-cup connected with the hub thereof, a needle for regulating the admission of air to said cup, and a feed-pipe connecting the top of the cup with the hub of the pulley, substantially as and for the purposes specified.

CHARLES W. ECKERSON.

Witnesses:

R0131. Brssn'r, JNo. Mean. 

